211116-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211116-67-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,1,1 and 6 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 211116-67:
(8*2)+(7*1)+(6*1)+(5*1)+(4*1)+(3*6)+(2*6)+(1*7)=75
75 % 10 = 5
So 211116-67-5 is a valid CAS Registry Number.